2017 International Forest Industries Magazines IFI Aug Sept 2017 v2 | Page 30

HIT Torgau (DE) installs new
transverse scanner for
optimum yield
Goldeneye 900 transverse quality scanner for optimized trim grading and sorting
German sawmilling
company produces
high-quality lumber
thanks to optimized
breakdown based on
internal log properties
determined by
computer tomography
G
erman sawmilling company
Holzindustrie Torgau, (HIT),
uses pulp wood to produce
pallet goods and lamellas for their
own further processing.
In addition to that, the
sawmilling company produces
high-quality lumber thanks to
optimized breakdown based on
internal properties determined by
computer tomography. A recently
installed Goldeneye 900 transverse
scanner now determines reliable
classifications of the various
product qualities and optimizes
trimming.
The Holzindustrie Torgau
was founded in 1999 on the
former military site Muna in
Torgau (Saxony) with the aim to
process the round wood growing
in the surrounding forests.
Aside of several saw lines for
small diameter logs (LINCK and
HewSaw), in 2014 the construction
works began for a large diameter
log mill which today has a CT Log
computer tomographic scanner
integrated in its production line.
Thanks to this state-of-the-art
technology, nowadays it is possible
to make precise cuts through logs
containing metal as well as to saw
and obtain high-quality lumber for
window lamellas and knot-free side
boards from logs with poor quality.
With the help of the CT scanner, the
logs are digitally reconstructed. All
log internal defects are evaluated
before the breakdown. In order to
elaborate this information properly,
28 International Forest Industries | AUGUST / SEPTEMBER 2017
HIT relies on a flexible reducer
band saw provided by EWD.
Through the CT Logs precise
position detection of defects and
other log properties such as metal
inclusion, annual ring structure,
core wood, blue stain and pith, the
saw line takes advantage of this to
produce special board dimensions
and qualities, cuts every single log
to optimum.
By means of a fingerprint of
the density profile, a Logeye 300
scanner recognizes every log as
A front side scanner module detects cup and annual rings - a second
scanner box determines lumber thickness to adjust scanner cameras
according to varying board hights